from functools import reduce
from fractions import gcd
import math
import bisect
import itertools
import sys
input = sys.stdin.readline
INF = float("inf")


# 処理内容
def main():
    X = int(input())
    print(10 - X // 200)
    


if __name__ == '__main__':
    main() from functools import reduce from fractions import gcd import math math import bisect bisect import itertools itertools import sys sys input = sys.stdin.readline input sys.stdin.readline sys.stdin sys stdin readline INF = float("inf") INF float("inf") float "inf" def main():
    X = int(input())
    print(10 - X // 200)
     main X = int(input()) X int(input()) int input() input print(10 - X // 200) print 10 - X // 200 10 X // 200 X 200 if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main INF = float("inf") float("inf") INF input = sys.stdin.readline sys.stdin.readline input def main():
    X = int(input())
    print(10 - X // 200)
     def main():
    X = int(input())
    print(10 - X // 200)
     main
from functools import reduce
from fractions import gcd
import math
import bisect
import itertools
import sys
input = sys.stdin.readline
INF = float("inf")


# 処理内容
def main():
    X = int(input())
    print(10 - X // 200)
    


if __name__ == '__main__':
    main()